Retort gas-lamp



(No Model.)

G. H. GREGORY.

RETORT GAS LAMP! r 0 w w r o 1 v t n t w I A vav n H J d e t n w 3 m m i W v g I:: O M Q f f I ow W e M,2

Wztnesses,

UNITED STATES Erica,

ATENT RETORT GAS=LAIVI P.

SPECIFICATION forming part of Letters Patent No. 343,708, dated June 15, 1886.

Application filed May 25, 1885.

To all whom it may concern.-

Be it known that I, GEORGE H. GREGORY, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Retort Gas-Lamps, which are fully set forth in the following specification, reference being had to the accompanying drawings, forming a part hereof, and in Which Figure 1 shows an elevation of my pendent lamp partly in section. Fig. 2 shows the re tort a in section in an enlarged view with steel tips a screwed in place. Fig. 3 shows the same arrangement as Fig. 1 on a horizontal arm without the cone f Like letters refer to like parts.

The object of my invention is to construct a fixture for burning gas which shall give more light and less heat, and at the same time pass off the noxious products of combustion.

In the drawings, a is a pendent gaspipe threaded in this case, upon which is carried a shade, f, which is made adjustable as to height to or from the burners o The shade fis held in the supporting-ring d by screws 6, and upon said ring (1 rests a cone, f, terminating in a pipe, f surrounding the pipe at". Said pipe f" is turned by an elbow or bend into a horizontal pipe,f which is connected with a flue, stove-pipe, airshal't, or other means through which the products of combustion and noxious gases may escape. The tips a are made of steel and are short, so as to heat the retort a and pipe (0 a and thereby heat the gas to a high degree as it passes to the burners. By this means the carbon becomes incandescent in the flame the moment it comes into the air and produces a brilliant o whiteli htalso a reat heat which is commu- 4 t: 7 7 b 7 Serial No. 166,654. (No model.)

nicated to the pipes and through them to the gas.

The ring at is held by the threaded nut b, having arms 0; but the nut I) may be simply a sleeve with a set-screw.

Openingsf are made in the pipef to prevent the pipes a a from becoming too hot.

.Two cocks, g are employed, one of which shuts off the supply of gas completely and the other only partly, so as to regulate the amount of both heat andlight. The cocks are worked by levers g g, tothe ends of which chains 9" are attached, reaching down to a convenient height to operate them.

It will be observedin this construction that the gas is burned at the lower instead of the upper end of the pipe a, as is the case in the usual construction; also, that the shade f is inverted to throw the light downward instead of upward, is adj ustable,and at the same time performs the further office of causing an inward and upward draft of the heated air andgases arising from combustion around the pipe a. 7 To further facilitate the heating of the ga at the point of the tips a they are made of steel or metal instead of the usual lava tips.

\Vhat I claim.is-

The retort a, with burners a attached to a threaded pipe, to, in combination with the adjustable ring (I, supported by the bar or plate 0, having internally-threaded head I), and conical shade f, attached at its smaller end to said ring, conical shade f, resting on ring (I, and formed at its smaller end into a flue, f, substantially as specified.

GEORGE H. GREGORY.

\Vitnesses:

WM. ZIMMERMAN, GUSTAV SOHILLING. 

